2

我想制作一个由列表框选定项的更改或单选按钮选定项的更改触发的事件。可能吗?我使用这段代码:

def getScript(event):
    state = rb.get()
    listScript = []
    processor = ()
    processor = lb1.get(lb1.curselection())
    if processor :
        if (state == 1):
            print processor
        if (state == 2):
            pass
        if (state == 3):
            pass


frame2 = Frame(top)
frame2.pack(fill = X)
rb = IntVar()

R1 = Radiobutton(frame2, text = "Parallel Test", 
                 variable = rb, value = 1, command = getScript)
R2 = Radiobutton(frame2, text = "Non Parallel Test", 
                 variable = rb, value = 2, command = getScript)
R3 = Radiobutton(frame2, text = "Specific Test", 
                 variable = rb, value = 3, command = getScript)

R1.grid(row = 0, column = 0, padx = 10)
R2.grid(row = 0, column = 1, padx = 10)
R3.grid(row = 0, column = 2, padx = 10)

frame3 = Frame(top)
frame3.pack(fill = X)
space_frame3 = Frame(frame3, width = 10)
l5 = Label(frame3, text = "Processor Unit")
l6 = Label(frame3, text = "Script for test")
lb1 = Listbox(frame3, height = 7, exportselection = 0)
lb1.bind('<<ListboxSelect>>',getScript)
scrollbar = Scrollbar(frame3)
lb2 = Listbox(frame3, height = 7, width = 40, 
              yscrollcommand = scrollbar.set, exportselection = 0)

只要我在选择列表框中的项目之前选择了一个单选按钮,一切都会很好。但是每次我选择另一个单选按钮时,它都会返回:

TypeError: getScript() takes exactly 1 argument (0 given)
4

1 回答 1

3

当您选择单选按钮时会发生什么:

1) intVarrb设置为按钮值

2) 调用 getScript 命令。

但是,单选按钮选择不会产生任何事件,这就是为什么在这种情况下有 2 个选项:

使用 lambda 函数调用函数以提供参数,因为您的命令getScript需要一个参数(即错误消息)。

R1 = Radiobutton(frame2, text = "Parallel Test",
                 variable = rb, value = 1,
                 command = lambda : getScript(None) )

另一个选项是 - 因为您的目标似乎是知道选择了哪个小部件 - 使用这样的命令:

R1 = Radiobutton(frame2, text = "Parallel Test",
                 variable = rb, value = 1,
                 command = lambda : getScript(R1) )

使用带有getSript小部件的功能。像这样:

def getSript(widget):
    print widget["text"]
于 2014-10-13T06:50:37.960 回答